3v4l.org

run code in 300+ PHP versions simultaneously
<?php function dateCompare($a, $b) { $t1 = strtotime($a); $t2 = strtotime($b); return $t1 - $t2; } var_dump( dateCompare('2013-12-02', '2013-12-06')); var_dump( dateCompare('2013-12-06', '2013-12-02')/(60*60*24)); var_dump( 60*60*24);

preferences:
56.2 ms | 402 KiB | 5 Q